{
  "manageEntity": {
    "action": "Create",
    "entityId": "60912500",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"title\":\"On Fiyah-Buss Stems GROUP Instruments.wav\",\"is_stream_gated\":false,\"is_unlisted\":false,\"field_visibility\":{\"genre\":true,\"mood\":true,\"tags\":true,\"share\":true,\"play_count\":true},\"is_downloadable\":true,\"stem_of\":{\"category\":\"OTHER\",\"parent_track_id\":87354495},\"owner_id\":451948712,\"track_cid\":\"baeaaaiqsedypcnnaqqkdqlpnogc24n2akcxogvmhjfekb7vbns5no5nph5at4\",\"orig_file_cid\":\"baeaaaiqsed4d5aymfkoxnjoowjlvxmynscayaqvkvfi2bs3zoteytlvcjlcpi\",\"orig_filename\":\"On Fiyah-Buss Stems GROUP Instruments.wav\",\"audio_upload_id\":\"b4457b13cea5f091e429f259382a0532\",\"duration\":195,\"bpm\":128,\"musical_key\":\"E flat minor\",\"audio_analysis_error_count\":0}}",
    "nonce": "0x51aee11edc279db7513aeffb6bfca2a393401472e7e2ef07a532e335ae6e69dd",
    "signature": "0x5a538e2bf055d01fd4896496403e8bf21a7a63a07dc744147214a8614c921b2c4dad39a28664973cfdfe7114043e411ce3db3a31575d0a9d6f2e8c68feb26c301c",
    "signer": "0xd8c50C74A53dFbd7E7fD4cA9080D0b4561C216EE",
    "userId": "451948712"
  }
}